1235400461 has 4 divisors (see below), whose sum is σ = 1236338400. Its totient is φ = 1234462524.

The previous prime is 1235400457. The next prime is 1235400553. The reversal of 1235400461 is 1640045321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1235400461 - 2² = 1235400457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1235400461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205400461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466991 + ... + 469628.

It is an arithmetic number, because the mean of its divisors is an integer number (309084600).

Almost surely, 2^1235400461 is an apocalyptic number.

It is an amenable number.

1235400461 is a deficient number, since it is larger than the sum of its proper divisors (937939).

1235400461 is an equidigital number, since it uses as much as digits as its factorization.

1235400461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937938.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1235400461 is about 35148.2639827346. The cubic root of 1235400461 is about 1073.0070769921.

Adding to 1235400461 its reverse (1640045321), we get a palindrome (2875445782).

The spelling of 1235400461 in words is "one billion, two hundred thirty-five million, four hundred thousand, four hundred sixty-one".